Gemstone



FIG. 1 is a perspective view of a gemstone, showing our new design.

FIG. 2 is a side view of the gemstone of FIG. 1.

FIG. 3 is a top view of the gemstone of FIG. 1; and,

FIG. 4 is a bottom view of the gemstone of FIG. 1.

The broken lines shown in the drawings illustrate portions of thegemstone that form no part of the claimed design.

CLAIM The ornamental design for a gemstone, as shown and described. 